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The studies on resistance to selected antibiotics were conducted on a total of 5154 isolates, including 2661 Staphylococcus sp., 2349 Streptococcus sp. and 144 E. coli, obtained from clinical and subclinical cases of bovine mastitis. Milk came from dairy farms in the Lubelskie Voivodeship. During the five-year research period (2007-2011), the isolated bacteria proved susceptible to the following antibiotic...
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